KRC for Bennu

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== General advice about using KRC on Bennu ==
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==Notes==
  
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When using KRC on Bennu the best practice is to:
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Basalt is the default material for Bennu (Mat1= "basalt"), and T_user = 220 (temperature at which the inertia is defined).
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::*Bennu is an Asteroid, so use bodytype = "minor" and body = "Bennu"
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::*Be sure to include quotations on bodytype and body
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::*
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== Command Line Example ==
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==Bennu Runs==
  
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== KRC Fortran Input File Example ==
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Orbital parameters have already been processed for Bennu, and standard material properties of airless bodies are considered by default.
  
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  0 0 1/ KOLD: start season;  KEEP: continue saving data in same disk file
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To run a Bennu case, set body = "Bennu".
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0 0 0 0 0 0  1 6 2 3 0 0 / 6 IDBx debug flags Present IFF 3rd value above ne 0
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Asteroid Bennu =RQ36 19 latitudes  T-dependent properties test Plus tiny atm
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    ALBEDO    EMISS  INERTIA    COND2    DENS2    PERIOD  SpecHeat  DENSITY
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        .03      1.00      50.0      3.4    928.0  0.178667    630.0    2200.
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      CABR      AMW  [ABRPHA    PTOTAL    FANON      TATM    TDEEP  SpHeat2
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  0.000001      43.5    -0.00      0.5      .055      200.    200.0    1300.
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      TAUD    DUSTA    TAURAT    TWILI      ACR2    [ARC3    SLOPE    SLOAZI
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  0.000001      .90      0.5      0.0      0.5    -0.00      0.0      90.
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    TFROST    CFROST    AFROST    FEMIS      AF1      AF2    FROEXT    [FD32
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      10.0  589944.      .65      0.95      0.54    0.0009      50.      0.0
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      RLAY      FLAY    CONVF    DEPTH    DRSET      DDT      GGT    DTMAX
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    1.2000    .1800    2.0000      0.0      0.0    .0020      0.1      0.1
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      DJUL    DELJUL  SOLARDEC      DAU    LsubS    SOLCON      GRAV    AtmCp
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    4455.0  10.9106      00.0    1.465        .0    1368.    3.727    735.9
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    ConUp0    ConUp1    ConUp2    ConUp3    ConLo0    ConLo1    ConLo2    ConLo3
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  0.149858  0.042111  0.035592  0.000366      3.40      0.0      0.0      0.0
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    SphUp0    SphUp1    SphUp2    SphUp3    SphLo0    SphLo1    SphLo2    SphLo3
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  577.4365  199.0392  -36.4975  18.4841    1300.      0.0      0.0      0.0
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        N1        N2        N3        N4        N5      N24        IB        IC
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        21      384        10        19      162        48        0      999
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      NRSET      NMHA      NRUN    JDISK    IDOWN    FlxP14    FlxP15    KPREF
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          3        24        1      121        0        45        65        0
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      K4OUT    JBARE    Notif  [IDISK2                                    end
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        52        0        20        -0                                      0
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    LP1    LP2    LP3    LP4    LP5    LP6 LPGLOB  LVFA  LVFT  LkofT
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      F      T      F      F      F      F      F      F      F      F
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  LPORB  LKEY    LSC  spare  LOCAL  Prt76 LPTAVE  Prt78  Prt79  L_ONE
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      T      F      F      F      T      F      F      F      F      F
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Latitudes: in 10F7.2  _____7 _____7 _____7 _____7 _____7 _____7 _____7
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  -87.50 -80.00 -70.00 -60.00 -50.00 -40.00 -30.00 -20.00 -10.00  0.00
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  10.00  20.00  30.00  40.00  50.00  60.00  70.00  80.00  87.50  -0.00
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Elevations: in 10F7.2 _____7 _____7 _____7 _____7 _____7 _____7 _____7
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    0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
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    0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00   
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  2013 Aug 23 08:11:19=RUNTIME.  IPLAN AND TC= 405.0 0.00000 Bennu
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    405.0000      0.000000      0.3564448E-01  0.1053292      1.156605   
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  0.2037319      1.126004      0.4090926      0.000000      -1.504474   
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  -1.185079      0.000000      0.000000      436.4232      4767.211   
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  0.1790608      0.000000      2.001070      0.000000      0.000000   
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    0.000000    -0.4171197      0.7619694    -0.4953924      0.9088515   
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  0.3497078    -0.2273616      0.000000    -0.5450751    -0.8383872
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8 0 0 '/work1/krc/BennuB.t52' / Disk file name
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1 3 436.318  'INERTIA' / match T_dep
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1 7 577.4365 'SpecHeat' / match T_dep
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1 35 8. 'CONVF' / account for variable k
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1 6 24 'N24' / test fewer output hours
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0/  1
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3 10 1 'LkofT' / Temperature-dependant properties
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0/  2
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12  0.149858  0. 0. 0.    3.40        0.0      0.0      0.0 / conductivities
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13  577.4365  0. 0. 0.    1300.      0.0      0.0      0.0 / SpecHeat
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0/  3
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3 10 0 'LkofT' / Temperature-dependant properties  RESET
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12 0.149858  0.042111  0.035592  0.000366      3.40    0.0      0.0      0.0 /
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13 577.4365  199.0392  -36.4975  18.4841    1300.    0.0      0.0      0.0 /
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1 3 50 'INERTIA' / 
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0/  4
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1 3 1600. 'INERTIA' /
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0/  5
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1 3 436.318  'INERTIA' / RESET
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1 12 5. 'PTOTAL' / add a tiny atmosphere
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0/  6
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1 9 .001 'CABR' / IR gas opacity    More of an atmosphere
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1 17 0.001 'TAUD' / dust vis. opacity
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0/  7
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1 9 .1 'CABR' / IR gas opacity    More of an atmosphere
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1 17 0.3 'TAUD' / dust vis. opacity
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0/  8
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1 12 500. 'PTOTAL' / mars-like atmosphere
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0/  9
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0/
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      5290.60 / puts encounter in about the middle of the output seasons
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8 0 0 '/work1/krc/RQ36p.t52' / Disk file name
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0/
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1 3 200 'INERTIA' /
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0/
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1 3 800 'INERTIA' /
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0/
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0/
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0/ 
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year is 436.443481 days
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with default convf
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default convf: Bottom layers for time doubling:      2    4    6    8  10  21
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convf=8        Bottom layers for time doubling:      6    8  10  12  14  21
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== Online Tool ==
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out = krc(lat=0.,INERTIA=50.,T_user=220.,LKofT="T",body="Bennu",ls=0.)
  
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== Common Problems ==
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[[Image:Bennu.png|800px]]
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By default, the temperature dependence of the thermal conductivity uses a Moon-like trend (k_style = "Moon").
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== Defining a Date ==
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Seasons can be defined as Ls (ls), Julian Date (JD), and Gregorian Date (GD):
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  OUT = krc(body="Bennu",lat=25.,ls=90.)
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For a specific Gregorian Date, GD (currently ranging from 1990-Jan-01 to 2040-Jan-01), the format is ????-Mmm-DD,
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with Mmm:Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec;
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  OUT = krc(body="Bennu",lat=12.,GD="2010-Jan-05")
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or a specific Julian Date JD:
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  OUT = krc(body="Bennu",lat=12.,JD=2455201)
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Note: the possibility to specify the date with GD is only currently available for Mars, the Moon, Bennu, and Europa.

Latest revision as of 15:55, 10 April 2020

[edit] Notes

Basalt is the default material for Bennu (Mat1= "basalt"), and T_user = 220 (temperature at which the inertia is defined).

[edit] Bennu Runs

Orbital parameters have already been processed for Bennu, and standard material properties of airless bodies are considered by default.

To run a Bennu case, set body = "Bennu". 

out = krc(lat=0.,INERTIA=50.,T_user=220.,LKofT="T",body="Bennu",ls=0.)

Bennu.png

By default, the temperature dependence of the thermal conductivity uses a Moon-like trend (k_style = "Moon").


[edit] Defining a Date

Seasons can be defined as Ls (ls), Julian Date (JD), and Gregorian Date (GD): 

 OUT = krc(body="Bennu",lat=25.,ls=90.)

For a specific Gregorian Date, GD (currently ranging from 1990-Jan-01 to 2040-Jan-01), the format is ????-Mmm-DD, with Mmm:Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec; 

 OUT = krc(body="Bennu",lat=12.,GD="2010-Jan-05")

or a specific Julian Date JD: 

 OUT = krc(body="Bennu",lat=12.,JD=2455201)

Note: the possibility to specify the date with GD is only currently available for Mars, the Moon, Bennu, and Europa.

Retrieved from "https://krc.mars.asu.edu/index.php?title=KRC_for_Bennu&oldid=2785"
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